度ど日にち

noun

degree day

Technical term used in fields such as energy management, agriculture, and climatology to measure heating or cooling requirements. Not common in everyday conversation.

• 暖だん房ぼう度ど日にちは、冬ふゆの寒さむさを数すう値ち化かした指し標ひょうです。

  Heating degree days are an index that quantifies winter coldness.